Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Christopher C. Ferraro"'
Autor:
Qusay Al-Kaseasbeh, Mohammad Al-Qaralleh, Timothy K. Mueller, Taylor A. Rawlinson, Kyle A. Riding, Christopher C. Ferraro
Publikováno v:
Results in Engineering, Vol 22, Iss , Pp 102275- (2024)
This study investigates the stresses developed at the rail transition adjacent to concrete tub crossings at varying train speeds. A finite element analysis (FEA) model was developed and validated with field data acquired from a concrete tub at-grade
Externí odkaz:
https://doaj.org/article/e195b27f126143fd847bbbce65d25df1
Autor:
Timothy K. Mueller, Qusay Al-Kaseasbeh, Mohammad Al-Qaralleh, Taylor A. Rawlinson, Kyle A. Riding, Christopher C. Ferraro
Publikováno v:
Case Studies in Construction Materials, Vol 19, Iss , Pp e02408- (2023)
Concrete tub crossings are at-grade railroad crossings used primarily on low-speed and low-tonnage rail lines. Concerns have been raised about the stiffness differential present between the track structure and crossing that could cause a localized sh
Externí odkaz:
https://doaj.org/article/98a0b1ba32e847d88a9e803114f1893b
Autor:
Brian H. Ortiz-Salcedo, Jerry M. Paris, Christopher C. Ferraro, Rafic Minkara, Kyle A. Riding
Publikováno v:
Cleaner Materials, Vol 5, Iss , Pp 100098- (2022)
This paper investigates the use of fly ash with various levels of chlorides as a supplementary cementitious material for use in portland cement concrete. The varying levels of chlorides in the fly ashes originated from the air-quality control systems
Externí odkaz:
https://doaj.org/article/a0ec7791a8f54f51894acb50f53a0dba
Publikováno v:
Infrastructures, Vol 8, Iss 3, p 53 (2023)
Since 1987 when dry-point-contact (DPC) transducers were invented in the USSR, ultrasonic shear wave devices based on those transducers have been commercialized and have become one of the most effective technologies for imaging concrete. That said, t
Externí odkaz:
https://doaj.org/article/3b1e3462f2d9424aa7557e907065c3e5
Publikováno v:
Cement, Vol 6, Iss , Pp 100016- (2021)
Permeability-reducing admixtures (PRAs) are marketed as an option to improve the concrete durability and reduce water ingress in structures. Two categories of PRAs that have become more prominent recently are hydrophobic pore blockers and crystalline
Externí odkaz:
https://doaj.org/article/c802025a22574dc9abb8c64d9e241783
Publikováno v:
Journal of Materials in Civil Engineering. 34
Publikováno v:
Construction and Building Materials. 374:130873
Autor:
Wesley N. Oehmig, Abdul Mulla Saleh, Kyle A. Clavier, Timothy G. Townsend, Justin G. Roessler, Christopher C. Ferraro
Publikováno v:
Waste Management & Research: The Journal for a Sustainable Circular Economy. 40:227-235
A common perception of plasma arc treatment systems for municipal solid waste incineration ash is that the resulting vitrified slag is inert from an environmental perspective. Research was conducted to examine this hypothesis and to assess whether re
Publikováno v:
Journal of Nondestructive Evaluation. 41
Autor:
Christopher C. Ferraro, Jerry M. Paris, Timothy G. Townsend, Linda Monroy Sarmiento, Kyle A. Clavier
Publikováno v:
Resources, Conservation and Recycling. 148:1-10
Municipal solid waste incineration (MSWI) ash has the potential to be used as mineral feed for portland cement manufacture but is not currently used in this manner in much of the world. A scoping study was performed using samples and data from Florid